Check the bulbs for shorted filaments. I had that issue on my F250 a few years ago, and the turn signal refused to flash. The right bulb had a filament that was broken and shorting to the taillight filament.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
